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That mystical charm hanging on your cell phone may make you feel better, but it ain't gonna ward off any germs. Luckily, health-conscious South Korean schoolgirls can head to Myungdong Street, Seoul's answer to Shibuya, where telecom giant KTF offers female subscribers complimentary handset disinfection. Here's how it works: Pop the plague-carrying phone into the Karis UV Sterilizer (approved by the Korean Food and Drug Administration) for three minutes. Ultraviolet light destroys evil bacteria, yet does not penetrate the phone's surface - email and digicam shots remain safe.